Signal-chain fit for a single-supply board
The TLV6003DBVR is a Texas Instruments general-purpose operational amplifier in a SOT-23-5 package — one circuit per chip, rail-to-rail output, and a gain-bandwidth product of 5.5 kHz. The 2.5 V/µs slew rate keeps the output edge intact for signals up to a few kilohertz.
Parametric floor for a low-frequency signal chain
Input bias current is 100 pA typ — low enough for a photodiode or thermocouple front-end where the source impedance is in the tens of kilo-ohms. Input offset voltage is 390 µV, typical for a general-purpose part; not a precision amplifier, but adequate for sensor conditioning where the signal swing is tens of millivolts or more. Output current is 200 µA per channel — expect to buffer into a high-impedance ADC input or a following stage, not a 50-ohm cable. Supply current is 1 mA quiescent, moderate for a battery-powered board that runs continuously. Temperature range spans -55°C to 125°C — industrial and military-grade coverage. The SC-74A / SOT-23-5 footprint is a standard 5-pin small-outline transistor package, easily hand-soldered or reflowed.
ROHS3 compliant, so it ships into EU or global production without restricted-substance paperwork.